We have used two commands that enable data to come in or go out of a program:.But the standard form of output is the monitor (or screen).Likewise, data can be output to many devices:.However, the standard form of input is from a keyboard.The inputs to a program can originate from many locations:.Computer programs take inputs, process data and produce outputs.Output, and they are referred to as I/O devices (input/output devices). However, some devices can accept input and display Most devicesĪre only input devices or output devices, as they can only accept data input from a user Input and Output – An input device sends information to a computer system for processing,Īnd an output device reproduces or displays the results of that processing.
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